Pre-installed Ubuntu15.04 or latest version.
Ready to drive as it is.
- eMMC Version 5.0 interface or higher.
- JEDEC / MMCA version 5.0: HS400 interface with 8bit DDR mode.
- You need an eMMC module reader to update the operating system of the eMMC module.
SD / eMMC performance
You can boot from a MicroSD card or an eMMC module. The microSD interface also supports higher performance UHS-1 mode.
File access for a 512 MB file (read / write) on three different storage options shows clear performance losses.
EMMC 5.0 storage is ~ 7x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card is ~ 2x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card provides a good price option for many applications!
Write command
sudo dd if = / dev / zero of = $ (mount-path) / test oflag = direct bs = 8M count = 64
Read command
sudo dd if = $ (mount-path) / test of = / dev / null iflag = direct bs = 8M
Test result
SD-class10 SD-UHS1 eMMC 5.0
Write speed (MB/s) 8.5 10.8 39.3
Read speed (MB/s) 18.9 35.9 140